Journal of Advances in Modeling Earth Systems, 2018 Simulating and understanding continental temperature extremes is a critical issue in Earth System Modeling. Conventional general circulation models are impaired by imperfect cloud and boundary layer parameterization schemes with implications for ...
J. Sun, M. S. Pritchard
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Impact of surface coupling grids on tropical cyclone extremes in high-resolution atmospheric simulations [PDF]
Geoscientific Model Development, 2016 This paper discusses the sensitivity of tropical cyclone climatology to surface coupling strategy in high-resolution configurations of the Community Earth System Model. Using two supported model setups, we demonstrate that the choice of grid on which the
C. M. Zarzycki +5 more
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Southeast Pacific Stratocumulus in the Community Atmosphere Model
Journal of Climate, 2012 Abstract Forecasts of October 2006 are used to investigate southeast Pacific stratocumulus in the Community Atmosphere Model, versions 4 and 5 (CAM4 and CAM5). Both models quickly develop biases similar to their climatic biases, suggesting that parameterized physics are the root of the climate errors.
Jerry G. Olson +3 more
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The Chemistry Mechanism in the Community Earth System Model Version 2 (CESM2)
Journal of Advances in Modeling Earth Systems, 2020 The Community Earth System Model version 2 (CESM2) includes a detailed representation of chemistry throughout the atmosphere in the Community Atmosphere Model with chemistry and Whole Atmosphere Community Climate Model configurations.
Louisa K. Emmons +17 more
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A sensitivity study of radiative fluxes at the top of atmosphere to cloud-microphysics and aerosol parameters in the community atmosphere model CAM5 [PDF]
Atmospheric Chemistry and Physics, 2013 In this study, we investigated the sensitivity of net radiative fluxes (FNET) at the top of atmosphere (TOA) to 16 selected uncertain parameters mainly related to the cloud microphysics and aerosol schemes in the Community Atmosphere Model version 5 ...
C. Zhao +11 more
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A modified stratiform cloud microphysics parameterization: evaluation using the Community Atmosphere Model version 6 single-column model [PDF]
Atmospheric Chemistry and PhysicsLarge-scale stratiform clouds are widespread and dominate the Earth's radiation budget. Their radiative and microphysical properties are inseparable, depending on ambient aerosol conditions and on properties of any convective outflow.
C. S. Pant +7 more
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Atmospheric Propagation Model for Satellite Communications
, 2014 حساب حساب عامل التخفيض الأفقي حساب عامل التعديل ...
Ali M. Al-Saegh +5 more
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Molecular Evidence for Metabolically Active Bacteria in the Atmosphere
Frontiers in Microbiology, 2016 Bacterial metabolisms are responsible for critical chemical transformations in nearly all environments, including oceans, freshwater, and soil. Despite the ubiquity of bacteria in the atmosphere, little is known about the metabolic functioning of ...
Ann M. Klein +5 more
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Modeling dust as component minerals in the Community Atmosphere Model: development of framework and impact on radiative forcing [PDF]
Atmospheric Chemistry and Physics, 2015 The mineralogy of desert dust is important due to its effect on radiation, clouds and biogeochemical cycling of trace nutrients. This study presents the simulation of dust radiative forcing as a function of both mineral composition and size at the global
R. A. Scanza +7 more
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Assessing the Dynamic Versus Thermodynamic Origin of Climate Model Biases
Geophysical Research Letters, 2018 Global climate models present systematic biases, among others, a tendency to overestimate hot and dry summers in midlatitude regions. Here we investigate the origin of such biases in the Community Earth System Model.
Kathrin Wehrli +4 more
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